| 任英忱,程敏清,王存昌.江西某地钨、碲、铋石英脉型矿床地质及碲的赋存状态[J].地质找矿论丛,1986,(1):57-69 |
| 江西某地钨、碲、铋石英脉型矿床地质及碲的赋存状态 |
| W-Te-Bi QUARTZ VEIN TYPE DEPOSIT AND THE OCCURRENCE OF Te IN ONE MINE OF CHIANGXI PROVINCE |
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| DOI：10.6053/j.issn.1001-1412.1986.1. 006 |
| 中文关键词: |
| 英文关键词: |
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| 中文摘要: |
| 碲是很有价值的分散元素,在国外已得到了广泛的应用.碲主要应用在钢铁工业上,其次才是有色金属工业和化工上.过去,认为碲的主要矿床是超基性岩铜镍矿床和火山岩中的块状硫化矿床,而对钨、铋石英脉中含碲则了解甚少.经过研究,认为钨、铋石英脉型矿床中碲的品位高、碲呈独立矿物存在,规模可达大中型,是独立的钨、碲、铋矿床. |
| 英文摘要: |
| W-Te-Bi quartz vein-type deposits is situated at the uplifted portion of South China Caleodonian fold belt. Regionally. the Devonian-Carboniferous fold basement is overlainby the Sinian-Cambrian formation. the mineralization occurred in the top of biotite-granite stock of early Yen Shanin, extended into the basement rocks, Host rocks are mainly Devonian feldspathic quartz sandstone. A group of fractures with E-W strike and some NWW-SEE NEE-SWW strike are the ore-controlling structure. There are 46 minerals With complex constituents Avariety of bismuthsulfosalt andt llurbismuthite of pbs-Bi2S3 Seriesare present, except for economic minerals such as wolframite and bismuthinite. Within 600 mof vertical extent is the mined orebody, quartz veins show a distinct inverse zoning. The upper part of the deposit has the assemblage of high-temperature minerals such as cassitente-zinnwaldite-tourmaline, while the lower part with the lowtemperature mineral assemblage of sulphide, sulfosalt, tellurbismuthite and bismuth. ue of inclusion geothermometry indicates 253℃ for upper of the orebody, 251℃ for the lower part. Te in the deposit occurred mainly as tellurbismuthite and secondly. as miner inclusions of tellur bismuthite in the PbS- Bi2S3 series. Tellurbismuth family has five minerals: joseite A, joseite B, tetradymite, ingodite and an unnamed tellurbismuthite. With coarse grain size commonly up to 5 mm, these minerals can be concentrated directly frombismuth concentrates during the ore-dressing. |
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